What is a magnetic gas What is magnetism

Magnetic gas is magnetic gas. Scientists have discovered that through freezing technology, it is possible to create a "magnetic gas". When the temperature is reduced to 0 00015 open, the gaseous lithium atom can show its magnetic properties.

This has led to a decades-long academic debate. This experimental study shows that there is an intersection between the study of condensed matter and the fields of atomic science and lasers, and that the research will also have a significant impact on areas such as data storage and medical diagnostics.

With freezing technology, it is possible to create a "magnetic gas". Scientists have found that when the temperature is reduced to 0 00015 degrees Kelvin from absolute zero, gaseous lithium atoms can show their magnetic properties.

Essentially, a laser reduces the temperature of the gas by keeping the atoms at rest, reducing their thermal motion. After the initial expansion of the lithium gas cloud, the cloud begins to shrink. When the laser is turned off, the contraction expands at a rate, indicating that the lithium atoms become magnetic.

This is very important from a holistic theoretical point of view because it gives us an easy-to-understand magnetic property on the smallest possible scale.

The experiment does not imply scientific results, but theoretical breakthroughs that will have the most practical implications. This is especially true in the field of data storage, where many of the physical laws followed by computer memory, which is made up of tiny magnetic particles, are better explained by this discovery.

Optical magnetic resonance is a double resonance technology based on the principle of conservation of angular momentum and the optical pumping method to study the magnetic resonance phenomenon between the Zeeman levels of atomic ultrafine structure. Thanks to the application of the light detection method, it retains the advantages of high resolution of magnetic resonance while increasing the measurement sensitivity by several orders of magnitude. It has great application value in the study of the internal microstructure of atoms and molecules, and in the accurate measurement of quantum frequency standards and weak magnetic fields.

Question 1: What substances are contained in magnets There are mainly atoms such as iron, cobalt, and nickel in magnets.

Question 2: What kind of substance is a magnetic field?

The explanations of physical matter and field matter are quite detailed.

Question 3: What does magnetism mean? There is no such word in Chinese, it is English"Translated from magic, it means "magical".

To say that the sound is magnetic means that it is pleasant to the ear.

Question 4: What kind of material is the magnet synthesized Magnet is not synthetic, and the magnets used now are basically quarried out of magnet mines, and the artificial cost is very high, and the effect is not good (but strong magnets are generally artificial).

The magnetism of the magnet is a physical phenomenon due to the regular movement of internal electrons. Anyone who studies physics knows that the toroidal current will form a vertical magnetic field, and each electron moving around the nucleus will produce a magnetic field (but the magnetic field of most materials is chaotic and cancels each other out, so it is not magnetic). The general magnet is ferric oxide.

General urban rubidium magnets used in electronic products.

Question 5: What material should the item used for magnetization be made of The item used for magnetization should be:

Made of iron, cobalt, nickel and other substances.

Analysis: Magnetism: Objects have the property of attracting substances like iron, cobalt, nickel, etc.

Magnet: A substance that has magnetic properties. Objects that can attract iron, cobalt, nickel, etc.

Magnetization: Refers to the process by which a substance that is not originally magnetic acquires magnetic properties.

Some objects become magnetic when subjected to magnetism or electric current, a phenomenon called magnetization.

Magnetization is to make the magnetic distance direction of the magnetic domains in the magnetic material consistent. When a material that is not magnetically externally magnetized is put into another strong magnetic field, it is magnetized, but not all materials can be magnetized, only objects made of iron, cobalt, nickel, etc.

Iron, cobalt, nickel, etc. are magnetic.

An international scientific research team composed of scientists from Germany, Switzerland and Italy recently discovered that the finite length of the atomic chain is magnetic at low temperatures, which is the smallest magnet found so far, American researchers have found that nanodiamond is magnetic, and the screwdriver will be magnetic for a long time, and the rotation of electrons will make the electron itself magnetic, becoming a small magnet, with N pole and S pole, the magnetic property of minerals is mainly due to the mineral composition containing iron, cobalt, nickel, titanium and other elements.

Magnetism is the phenomenon that when two magnets or magnets attract or repel each other, or when the current-carrying wire generates a magnetic field around it, causing the magnetic needle to deflect and point, or when the closed circuit moves in an uneven magnetic field, there will be a phenomenon that the current appears in the closed circuit.

Due to being ferromagnetic, a magnet or magnet creates a magnetic field. In addition, paramagnetic substances tend to move towards regions with strong magnetic fields, that is, they are attracted by magnetic fields. Diamagnetic materials tend to move towards the region where the magnetic field is weak, that is, they are repelled by the magnetic field. There are also substances that have a more complex relationship with the magnetic field, such as the properties of spin glass, antiferromagnetism, and so on. The influence of the external magnetic field on some substances is very weak.

The magnetic state of a substance is related to temperature, pressure, external magnetic field, etc., and the substance will show different magnetic properties depending on the temperature or other parameters.

A common phenomenon. Although human beings have recognized the magnetic phenomenon for a long time, it is not until modern times that people's understanding of the magnetic phenomenon has gradually been systematized, and countless electromagnetic instruments have been invented, such as **, radio, generator, motor, etc. Nowadays, magnetic technology has penetrated into all aspects of our daily life and industrial and agricultural technology, and we have become more and more inseparable from the wide application of magnetic materials.

Because the magnetism of matter can neither be seen nor touched, it is impossible to directly experience the existence of magnetism through its five senses (hearing, sight, taste, smell, and touch), but people still gradually unveil its mystery in practice.

A magnet always has two poles, one is the n pole and the other is the S pole. A magnet, if sawn from the middle, becomes two magnets, each with a pair of poles. No matter how small the magnet is, it will always have n and s poles, which means that the n poles and the s poles will always appear in pairs, and it is impossible to make a magnet have only n poles or only s poles.

Objects that are magnetic are called magnets.

The most magnetic part of the magnet is called the magnetic pole, and the process of obtaining magnetism for objects without magnetism is called magnetization, and there is a magnetic field around the magnet, and the interaction between the magnet and the magnet occurs through the magnetic field. So the answer is: magnets; Magnetic pole; Magnetization; Magnetic field; Magnetic field;

A magnet refers to a substance or material that is capable of generating a magnetic field. It is a peculiar substance that has an invisible force that can both attract and repel some substances. Generally, it is divided into permanent magnets and soft magnets.

The magnet has two poles, the magnetic north pole N, the magnetic south pole S, and after being cut off, it is still the two poles N pole and S pole. A single pole cannot be present. At the same time, the magnet is directive, if you hang a magnet, you will find that its south pole points to the geographic south magnetic pole to the left and right, and the north pole points to the geographic north magnetic pole to the left and right.

There is an interaction between the magnetic poles, with the same name repelling the poles and the different names attracting the poles. There is a substance around the magnet that causes the needle to deflect, and this substance is called a magnetic field in physics. The distribution of the magnetic field is usually represented by magnetic inductance lines.

Minerals

The first magnets discovered were minerals known as "natural magnets" that contained iron and attracted other objects, much like magnets.

The most common magnetic minerals in various rocks in nature are iron titanium, iron manganese oxides and hydroxides, iron sulfides, iron, cobalt, nickel, alloys and so on.

Scientists believe that the magnetic state of these minerals is ferromagnetic (such as ilmenite, hematite, goethite, titanium spinel and meteorite iron), or ferrite (such as magnetite, magnetite, pyrrhotite, manganese spinel, etc.). Among them, ferrite magnetite and hematite are the most magnetic.

1. In fact, any substance is magnetic, so any substance will be affected by magnetic force in an inhomogeneous magnetic field, and the magnitude is different.

When there are ions, atoms, or molecules with unpaired electrons in a substance, there is the spin angular momentum and orbital angular momentum of the electrons, and there is also the spin magnetic moment and the orbital magnetic moment. Under the action of the external magnetic field, the magnetic moment that was originally oriented out of chaos will be oriented, thus exhibiting paramagnetism, also called ferromagnetism or strong magnetic substance. This is what we usually call a magnetic substance.

Paramagnetic substances can be magnetized in a magnetic field and are greatly affected by the force of the magnetic field.

2. Yes, it is a strong magnetic substance such as iron, cobalt, nickel and its strong magnetic compounds, also called paramagnetic substances. It is a magnetic substance with strong magnetic properties.

The "magnetic substance" here should generally refer to something that can be attracted by magnets, the refrigerator door is iron, and the magnetic sealing strip can of course attract the refrigerator door.

(1) Magnetism: The property that can attract iron, cobalt, nickel and other substances is called magnetism;

Magnets: objects that have magnetic properties;

2) The most magnetic part of the magnet is called the magnetic pole, and there are two magnetic poles on a magnet, which are called the south (S) pole and the north (n) pole respectively;

3) Magnets have a wide range of applications, such as compasses, electromagnetic cranes, maglev trains, electromagnetic relays, speakers, motors, generators, microphones, etc

So the answer is: magnetism; Magnetism; South (s); North (n); Compass, electric motor (reasonable enough).

The concept of magnets: Objects that have the property of attracting high slag iron, cobalt, nickel and other substances are called magnets.

Magnets are generally divided into permanent magnets and soft magnets.

Permanent magnet: that is, a magnet that can maintain its magnetic properties for a long time, and a permanent magnet is a hard magnet, which is not easy to lose magnetism and is not easy to be magnetized.

Soft magnets: Most of the materials used as conductors and electromagnets are soft magnets, and the polarity of the soft magnet varies with the polarity of the applied magnetic field. Lead coarse.

Magnets - The properties that can attract iron, cobalt, nickel and other substances are called magnetism, and objects with magnetism are called magnets.